Head for beading machines



Patented Sept. 13, 1932 KENNETH P. Swanson; dr mvmeron, NE

. CORPORATION; I

,Applicationdfiled ma 31,

This invention relates to an improved beading machine for inserting wires into glass. This class of machine isused'in-the manufacture of beads which are, made of glass and hold wires which support the grid, plates and Q filaments of radio tubes. The machine can be used for inserting wires into .gl'assbeads to be used for other purposes. I

' The object of the invention isto provide a head for a beading machine which head is operated to push the wires endwise into. the bead from opposite sides andit is usual to have the movements successive. Thewire on one side is pushed into the heated edge of the bead and then the other side of the beadfis softened and the opposite wires inserted. The head is operated by a cam as in the standard machine. The improved head allows the complete insertion from opposite sides infone Figure 2 is a front view of the head shown in Figure 1. Figure 3 is a central vertical section of Figure 2. Figure 4 is a side view of a product of the head showing one form as typical of the articles made. 7

These beads are mounted in machines which include arms to carry the heads in a circular path and subject the beadsto heat and wires to an end push at proper times to insert the wires in the glass of the bead. The pushing and releasing is usually done by a circular stationary cam over which the heads are conducted. These machines are not new and one is not illustrated herein, as one skilled in the art will be familiar with this class of machine and understand the operation of the head from the following description.

The header comprises a frame work which issecured bythe collar 10 tothe rotating frame of'a mach ne and passes around-1 with an intermittent motion over a circular cam a fragment of whichis shown at 11. v

12 .which is sili-dablje on theitwo side rods '13 which are secured at their bottoms inthfe collars 14v of the lower part 15 of the' frame.

The arm 12 is limited-in its downwafdfmovement by the collars 16; The'springs 17 yield- .ingly hold the arm 12 down on. the collars 16 and abut on the-twobearings18 fastenedat the top ofthe rods 13.

The frame, work has the bead arm a w Jessie, Assurance mp same anaemic A; cover19 is pivoted atone end;

to the top of an arm 13' and is movable'thereon laterally by the handle "21gand has a-gslottfed j'p'art'22l to embrace the top end-of-the other rod I3and is seated under the head23 on Slidabl in1the"coll a r-1 0 isa' plunge B13124:

which is" provided. with a key way which receivesthe key 26. plunger has atdt's 't'op'end the cross-piece 27 and two side stand- ,ards 28, 1 i

The b'eadsupportihgarm a downward;-

projecting "extension 29 which ispr'ovided with alatch .30. The latch crossestheslot 31 which extends on the surfaceofthefi-eX- tension 29 and. the arm 12. Theg extension has a lip ffi which. has ahol e 3 3 jin extension .ofthe slot 31. The arm 12is cut away? as at ai eauow' the flame ite a. burner to be directed'on the glass cane or beadf3 5 which restsfon the curved upper face-36; of thearm i 12am rests betweenpins on the' top of the Thetop'bearings 18 receive the wire guide block 38 whichis preferably pivoted to swing hetweeri bearings It is held normally in 'posit1en. pins 39" which havepointed eiidsl'O fitting into recesses-in the ends of the block and, arepressed outwardly 1 by $P i 5 1 1 I j The: plungerQA hasthe pin 42 in. its; end andi hi .i a i Qd-S ha it W Q F 'QEV P theendi .of'the plunger. The .springAgQ is strongfienough'to. resist:- ordinary pressure aeee s r for inserting; wires into the bead but'if anything becomes jammed the head the springa-llows the pin 42 to retreat into the plunger and, nothing isbroken when the camll operates on the plunger.

In Figure 4 I, showa bead when completed,

this form'showing four wires inthe-top of I the bead and one wire inserted into the bottom of the bead.

" The operation ofthe devicezisas follows: The -wire44 to'fbe inserted into the bottom of the cane is placed into the hole 133 and the slot Bland the latch moved across it to Y keepitiin place." The cane .is then laidionf bead 35. The cover 19 is then swung to closed 7 position and head the next flame is directed to the top edge ofthe bead 85. Then" the head ismo'ved from camg'surfacef48 on which is'rested'to the rise49i' This pushesthe plunger 24 and standards 28 push 'up on thearm 12'which the arm ,12. The cover19 has been swungto' open position on the removal of thela stfinished bead but ifnot is swung back to uncover the holes 45 in'the block 38and the wires 46 are dropped into holes 45 and rest on the prevents upward movement of the wires 46. I 7

The headis then" advanced by the'machine to a flame which heats'the lower edge of the beadj35 throughfopening 341 This is .fol-

lowed by themovement of the head over the rise 47 ofthe cam and the plunger pushes up' on the cross-arm 27 on which the wire 44 rests. This pushes'the wire-44 into the cane as the cam only raises the .crossfarmfa r enough to inset the wire 44 the desired -dis tance.

the next stop in the movement. of the cross arm 27 still further and the topsQof. the

holds the bead and the bead is pushedagainst ofthebead35w 3 J I After this the cam allows springs 17 to 'in the bead. I v

' 2. headTorbeading machines compris- Various changes can be made-"in the ar rangement and proportion of the parts without departing from the scope oftheinven- 1. A head for.beading machinescomprisinga framework, a sliding holder for a bead,

a'g'uide' to hold'wires', that rest on the bead against movement, the bead holder having a. sm t F FGQ Q-.@;j:Wl ?erIl I ith a andaflpl-unger j-to successively engage the lower wire and then the bead holder to suc- Qessively insert the lowerand upper wires ing aframe work having spaced side rods a holder for a bead; holder being slida-blef 'on'the rods, a guide for wire secured on said side rods and aboveithe beadholder the bead hold'e'rjhaving a'groove to receive a wire under 'thebead, and a -plunger jslidable on the rods andfhaving a'lface to engage the wire under thebeadand having standards to env ease the underside'of 6 bead ho d t 1 d forbeading machines Comprisa f e 'q movable-bead holder in the frame,- a wire guide on one side of the holder to hold wire inline withthebeach the bead holder having a groovet o hold a wire onfthe opposite side'of the bead; and means for sue",- ces'sively moving'the last mentioned wire and then fthe bead holder to insert allthe wires into thebeadpi f f 1 whereof he affixes his signa- In -testimo KENNn rHj P; swANsoN,

the wires 46Lt0 imbed their ends in the glass push the-arm' 12' down .andthe plunger 24 I also drops. The latch 30 isn novedffroni 7 across the wire 44 a'nd'thecover 19 isswung v back out of the way. I V I 1 The finished head israiseduntil the bot-' tom part of wire 44 clears the to of the opening 33 iand then theiwire' 44fis swung operation.

YThe head can beralteredgfor various um I 8' 1 hers 'oftop or bottom wires according tothe requirements. "The central part 51 of the armi'l 2 and its extension 29 canfbe attached and removed by screws 50 andthe block 38 is removable by snapping it out or in from or to position 'betwe'en the spring pins 39.

f-gThelatch 30 can'be made off'sprin'g' metal to allow it to clear the pin' 52 or the pin 52 orthepivot pin of the latch can allow slight movement sufficient to allow the latch tobe p ed v th P e-L 

